US20120314138A1 - Lighting device, display device and television receiver - Google Patents

Lighting device, display device and television receiver Download PDF

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Publication number
US20120314138A1
US20120314138A1 US13/578,822 US201113578822A US2012314138A1 US 20120314138 A1 US20120314138 A1 US 20120314138A1 US 201113578822 A US201113578822 A US 201113578822A US 2012314138 A1 US2012314138 A1 US 2012314138A1
Authority
US
United States
Prior art keywords
light
light source
led
optical path
light guide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US13/578,822
Other languages
English (en)
Inventor
Yoshiki Takata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sharp Corp filed Critical Sharp Corp
Assigned to SHARP KABUSHIKI KAISHA reassignment SHARP KABUSHIKI KAISHA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TAKATA, YOSHIKI
Publication of US20120314138A1 publication Critical patent/US20120314138A1/en
Abandoned legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0031—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/003—Lens or lenticular sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0085—Means for removing heat created by the light source from the package
US13/578,822 2010-02-26 2011-01-24 Lighting device, display device and television receiver Abandoned US20120314138A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2010-041989 2010-02-26
JP2010041989 2010-02-26
PCT/JP2011/051177 WO2011105147A1 (ja) 2010-02-26 2011-01-24 照明装置、表示装置及びテレビ受信装置

Publications (1)

Publication Number Publication Date
US20120314138A1 true US20120314138A1 (en) 2012-12-13

Family

ID=44506569

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/578,822 Abandoned US20120314138A1 (en) 2010-02-26 2011-01-24 Lighting device, display device and television receiver

Country Status (2)

Country Link
US (1) US20120314138A1 (ja)
WO (1) WO2011105147A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160116661A1 (en) * 2013-06-13 2016-04-28 Sakai Display Products Corporation Display Apparatus and Television Receiving Apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014174316A (ja) * 2013-03-08 2014-09-22 Ledlink Optics Inc 光学レンズ

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090268432A1 (en) * 2008-04-28 2009-10-29 Samsung Electronics Co., Ltd. Display device having high brightness uniformity at positions close to light source

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3421621B2 (ja) * 1999-12-24 2003-06-30 三洋電機株式会社 面光源装置
KR100668314B1 (ko) * 2004-11-22 2007-01-12 삼성전자주식회사 백라이트 유니트
JP4551948B2 (ja) * 2007-06-13 2010-09-29 シャープ株式会社 線状光源装置、面発光装置、面状光源装置、および、液晶表示装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090268432A1 (en) * 2008-04-28 2009-10-29 Samsung Electronics Co., Ltd. Display device having high brightness uniformity at positions close to light source

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160116661A1 (en) * 2013-06-13 2016-04-28 Sakai Display Products Corporation Display Apparatus and Television Receiving Apparatus
US10185081B2 (en) * 2013-06-13 2019-01-22 Sakai Display Products Corporation Display apparatus and television receiving apparatus

Also Published As

Publication number Publication date
WO2011105147A1 (ja) 2011-09-01

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SHARP KABUSHIKI KAISHA, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TAKATA, YOSHIKI;REEL/FRAME:028780/0919

Effective date: 20120728

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION